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view box

A device made of lights placed behind a translucent screen and used to provide backlighting for a radiographic image. It helps clinicians see the brightness, contrast, and details of an image. Also known as an illuminator.

vigil

coma v. 1. A delirious, drowsy state in which the patient is partially conscious and occasionally responsive to stimuli. SEE: vigilambulism. 2. An obsolete term for persistent vegetative state. SEE: persistent vegetative state.

vigor

Villaret syndrome

(vē-la-rā′) [Maurice Villaret, Fr. neurologist, 1877–1946] Ipsilateral paralysis of the 9th, 10th, 11th, 12th, and sometimes the 7th cranial nerves and the cervical sympathetic fibers. It is caused by a lesion in the posterior retroparotid space. The signs and symptoms include paralysis and anesthesia of the pharyngeal area with difficulty swallowing; loss of taste sensation in the posterior third of the tongue; paralysis of the vocal cords and the sternocleidomastoid and trapezius muscles; and Horner's syndrome.